Peripherals Enhanced FLASH New Peripherals Enhanced FLASH PIC

Peripherals & Enhanced FLASH New Peripherals Enhanced FLASH PIC 16 F 87 X and PIC 16 F 62 X © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 1

Peripherals & Enhanced FLASH PIC 16 F 87 X Features at a Glance l 8 K x 14 FLASH Program Memory l l l 256 x 8 EEPROM Data Memory l l USART Min. 100 K E/W l 25 m. A sink/source l 1 - 16 -bit 2 - 8 -bit 10 -bit A/D © 1999 Microchip Technology Incorporated. All Rights Reserved. l 9 -bit addressable l High Speed Enhanced SPIä l All 4 SPI modes supported l Microwire Support Master I 2 Cä l 3 Timers l l Two Capture/Compare/PWMs l 368 x 8 Data Memory (RAM) 33 I/O ports l l Typ. 1000 E/W Byte/Word Read/Write at VDD l Hardware Write to I 2 C devices l In-Circuit-Serial Programmingä l In-Circuit-Debugger l Parallel Slave Port S 4525 A Peripherals & Enhanced FLASH 2

Peripherals & Enhanced FLASH PIC 16 F 62 X Features at a Glance l l 18 -pin package Up to 2 K x 14 FLASH Program Memory l l l Typ. 1000 E/W Byte/Word Read/Write at VDD Min. 100 K E/W 224 x 8 Data Memory (RAM) 16 I/O ports l 25 m. A sink/source © 1999 Microchip Technology Incorporated. All Rights Reserved. 3 Timers l 1 - 16 -bit 2 - 8 -bit l Capture/Compare/PWM l USART 128 x 8 EEPROM Data Memory l l 9 -bit addressable l High Speed l 2 Comparators l In-Circuit-Serial Programmingä l Internal RC Oscillator S 4525 A Peripherals & Enhanced FLASH 3

Peripherals & Enhanced FLASH Enhanced CCP Module l Capture and Compare Modes: l l The same as existing CCP Module. New PWM Modes: l l l Single output Dual outputs Quad outputs © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 4

Peripherals & Enhanced FLASH Enhanced CCP Module l Single Output Mode: l l PA output running in PWM mode. Similar to existing CCP in PWM mode. Selectable active high or active low output. Application examples: l l To create a low frequency D/A converter. To drive a single power switch. © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 5

Peripherals & Enhanced FLASH Enhanced CCP Module l Dual Output Mode: l PA output running in PWM Mode. l PB output is complementary of PA. l Dead-band control: l l To accommodate turn-off delay of one switch before turning on the other. l Programmable 0 -255 times 4 x. Tosc. Independently selectable active high or active low outputs. © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 6

Peripherals & Enhanced FLASH Dead Time PWM TD TDC TP TD = Dead Time [Dual Output Mode Only] TDC = Duty Cycle Time TP = Period Time © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 7

Peripherals & Enhanced FLASH Enhanced CCP Module l Application Examples for Dual Output Mode: l Half-bridge l Full-bridge with all four switches modulated at PWM frequency © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 8

Peripherals & Enhanced FLASH PWM Dual Output Mode Half Bridge Example PA PIC 16 C 717 PIC 16 C 770 PIC 16 C 771 FET DRIVER LOAD PB © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 9

Peripherals & Enhanced FLASH PWM Dual Output Mode Full Bridge Example VHIGH PA PIC 16 C 717 PIC 16 C 770 PIC 16 C 771 FET DRIVER MOTOR FET DRIVER PB © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 10

Peripherals & Enhanced FLASH Enhanced CCP Module l l Quad Output Mode: l PB or PD output modulated. l PC or PA output is active. l Independently selectable active high or active low output pairs. Application Examples: l Full-bridge where only one switch is modulated at PWM frequency to minimize switching losses. © 1999 Microchip Technology Incorporated. All Rights Reserved. S 4525 A Peripherals & Enhanced FLASH 11

Peripherals & Enhanced FLASH PWM Quad Output Mode Example VHIGH PA PIC 16 C 717 PB PIC 16 C 770 PIC 16 C 771 PC PD © 1999 Microchip Technology Incorporated. All Rights Reserved. A FET DRIVER C FET DRIVER MOTOR B D S 4525 A Peripherals & Enhanced FLASH 12